Geaham beott



(Noranda.)

G. BROTT.

TELBGRAPH WIRE UOUPLING. A No. 272,524. Patented Feb. 20,1883..

///ll /////lllll/ media. The coupling-sleeve, having but two.

UNITED STATES PATENT OFFICE.

GRAHAM BEOTT, 0E wATEEEoRD, NEW YORK.

TELEGRAPH-WIRE oouPLiNc.

SPECIFICATION forming part of Letters Patent No. 272,524, dated February 20, 1883.

Application nien December 4,1882. (No modem' To all whom it may concern:

Beit known that l, GRAHAM BROTT, of Waterf'ord, in the county of Saratoga and State of NewYork, h ve invented certain new and' companying drawings, and to the letters ofv reference marked thereon, which form part of this specification.

My invention relates to coupling-sleeves or going devices for telegraph and other wires, and is designed to forma simple and secure coupler for the wires, while it-is so constructed that when applied to the ends of the wires they are brought .into electrical contact along their overlappingsections and at their abutting ends wi thin the cavity or passage of the' coupling-sleeve. )3y this peculiar construction and application I ani enabled to form the coupler of other material than metal, and even of insulating` material, as it is not necessary that the coupler 'form part of the conducting openings, may be madecomparatively light, and may be easily and cheaply cast or other` wise formed of metal, glass, 85o.

Having set forth the nature and object of my invention, I will now more particularly describe it with reference to the accompanying drawings, in which- Figure l represents a lon gi-tudinal elevation of the coupler applied to the wires. Fig. 2 is a longitudinal section showing the abutting ends of the two wires within the lower cavity or passage. Fig. 3 is a vertical cross-section, showing the shape of the two passages or cavil ties. Fig. 4 is a detached side view ofthe wires, showing the shape into which they are bent. Fig.5 is a horizontal section, showing the overlapping sections of wire in the upper cavity.

The same letters of reference designate like parts in al1 the figures.

The coupling-sleeve A is an inch (more or` less) in length, and is of triangular lform in cross-section, with the' corners rounded, as

5o shown in Fig. 3, and is provided with a large or double opening, B, in its thicker portion,

and with a single round or other shaped opening or passagel in its thinner portion. The large opening B is preferably formed of two round passages `opening into each other at the center of the coupler, and with two opposite central ridges, b b, extending longitudinally, and projecting into the opening, as shown in Fig. 3, whereby the overlapping wires D D are held 'securely in place and in contact when the coupler is applied.` -The bent ends d d of the wires D D are inserted in the sin all passage C, where they abut against each other, as shown at S in Fig. 2.

The improved coupling-sleeve, by its simu factured, and is readily applied to unite the wires, forming a neat, secure connection. The ends of the wires to be coupled are first passed from opposite ends of the coupler through the large passage thereof, and the projectingends'are then bent upon themselves, as shown,and `inserted in thepassage C; or each Wire may be separately passed through the large passage, its end bent on itself, and inserted in the small or single passage C.

The coupling-sleeve constructed and ap nal opening orv passage partially divided by two -longitudinal ribs, as described, for Vthe reception of two overlapping wires, and a smallerlongitudinalopenin'gofa suitablecrosssection forreceiving a single wire, whereby the bentendsv of the conducting-wires may be Vinserted at `opposite ends'of the passage and abutted against each other, for the purpose described.

3. A coupling-joint for wires, formed by 10o ,65 plicity of construction, may bel cheaply manmy own I afx my signature in presence of two Witnesses.

GRAHAM BROTT.

Witnesses:

GEORGE H. COLE, JOHN HIGGINS. 

